Journal Paper

• Masatoshi Kimura, Xinyi He, Takayoshi Katase*, Terumasa Tadano, Jan M. Tomczak, Makoto Minohara, Ryotaro Aso, Hideto Yoshida, Keisuke Ide, Shigenori Ueda, Hidenori Hiramatsu, Hiroshi Kumigashira, Hideo Hosono, Toshio Kamiya. Large phonon drag thermopower boosted by massive electrons and phonon leaking in LaAlO3/LaNiO3/LaAlO3 heterostructure, Nano letters, Vol. 21, pp. 9240-9246, Oct. 2021.
• Takayoshi Katase*, Xinyi He, Terumasa Tadano, Jan M. Tomczak, Takaki Onozato, Keisuke Ide, Bin Feng, Tetsuya Tohei, Hidenori Hiramatsu, Hiromichi Ohta, Yuichi Ikuhara, Hideo Hosono, Toshio Kamiya. Breaking of thermopower – conductivity trade-off in LaTiO3 film around Mott insulator to metal transition, Advanced Science, Vol. 8, pp. 202102097, Oct. 2021.
• Xinyi He, Takayoshi Katase*, Keisuke Ide, Hideo Hosono, Toshio Kamiya. Ion substitution effect on defect formation in two-dimensional transition metal nitrides semiconductor, AETiN2 (AE = Ca, Sr, Ba), Inorg. Chem., Vol. 60, pp. 10227-10234, July 2021.
• Loku Singgappulige Rosantha Kumara, Kyohei Ishikawa, Keisuke Ide, Hideo Hosono, Toshio Kamiya, Osami Sakata. Local Structure Properties of Hydrogenated and Nonhydrogenated Amorphous In-Ga-Zn-O Thin Films Using XAFS and High-Energy XRD, J. Phys. Chem. C, 125, 13619–13628, June 2021.
• Kohei Yamagami, Keisuke Ikeda, Atushi Hariki, Yujun Zhang, Akira Yasui, Yasumasa Takagi, Takayoshi Katase, Toshio Kamiya, Hiroki Wadati. Hard x-ray photoemission study on strain effect in LaNiO3 thin films, Appl. Phys. Lett., vol. 118, pp. 161601, Apr. 2021.
• Takayoshi Katase, Yudai Takahashi, Xinyi He, Terumasa Tadano, Keisuke Ide, Hideto Yoshida, Shiro Kawachi, Jun-ichi Yamaura, Masato Sasase, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Reversible 3D-2D structural phase transition and giant electronic modulation in nonequilibrium alloy semiconductor, lead-tin-selenide, SCIENCE ADVANCES, Vol. 7, pp. eabf2725, Mar. 2021.

Book

• 片瀬貴義, 神谷利夫. セレン化スズ半導体の極性を多段階制御 排熱を電気に変える高性能熱電素子実現へ, クリーンエネルギー, 日本工業出版, Vol. 30, No. 4, pp. 19-22, Apr. 2021.

International Conference (Reviewed)

• Masatoshi Kimura, Xinyi He, Takayoshi Katase, Terumasa Tadano, Jan M. Tomczak, Makoto Minohara, Ryotaro Aso, Hideto Yoshida, Keisuke Ide, Shigenori Ueda, Hidenori Hiramatsu, Hiroshi Kumigashira, Hideo Hosono, Toshio Kamiya. Appearance and large enhancement of phonon drag thermopower by epitaxial strain and phonon leaking from LaAlO3 in LaNiO3, Materials Research Meeting 2021, Dec. 2021.
• Kaiwen Li, Kota Hanzawa, Keisuke Ide, Kosuke Matsuzaki, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Zhang Qun, Toshio Kamiya. Transport properties of Zn3N2 investigated by ionic liquid gated electric-double-layer transistors, Materials Research Meeting 2021, Dec. 2021.
• Tasuke Kadono, Keisuke Ide, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Fabrication and characterization of resistive random-access memory device using amorphous 12CaO·7Al2O3, Materials Research Meeting 2021, Dec. 2021.
• Shigeru Kimura, Akihiro Shiraishi, Xinyi He, Takayoshi Katase, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. High-purity bulk synthesis and electronic properties of a two-dimensional layered semiconductor, alkaline earth transition metal nitrides, Materials Research Meeting 2021, Dec. 2021.
• Xinyi He, Haoyun Zhang, Takumi Nose, Takayoshi Katase, Terumasa Tadano, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Enhanced thermoelectric figure-of-merit ZT in layered SnSe doped with isovalent Te and its origin clarified by density functional theory, Materials Research Meeting 2021, Dec. 2021.
• Masatoshi Kimura, Xinyi He, Takayoshi Katase, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Large phonon drag thermopower enhancement by epitaxial strain and phonon leaking in LaAlO3 / LaNiO3 / LaAlO3 heterostructure, 2021 Materials Research Society Fall Meeting & Exhibit, Nov. 2021.
• Shigeru Kimura, Akihiro Shiraishi, Xinyi He, Takayoshi Katase, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Two-dimensional layered semiconductors AETMN2 (AE = Sr, Ba; TM = Ti, Zr, Hf); high-purity bulk synthesis and electronic property characterization, 2021 Materials Research Society Fall Meeting & Exhibit, Nov. 2021.
• Xinyi He, Chihiro Yamamoto, Takayoshi Katase, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Double charge polarity conversion by Sb doping in layered SnSe with switchable substitution sites, 2021 Materials Research Society Fall Meeting & Exhibit, Nov. 2021.
• Keiji Tsubaki, Atsushi Turumaki-Fukuchi, Yasuo Takahashi, Takayoshi Katase, Toshio Kamiya, Masashi Arita. Fast and Reliable Resistance Switching in Ca2RuO4 Thin Films Driven by the Current-Induced Phase Transitions, 2021 International Conference on Solid State Devices and Materials (SSDM), Sept. 2021.
• Kaiwen Li, Kota Hanzawa, Keisuke Ide, Kosuke Matsuzaki, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Zhang Qun, Toshio Kamiya. Room-temperature fabrication of ionic liquid gated Zn3N2 electric double layer transistors with non-degenerate channel electron density, 2021 International Conference on Solid State Devices and Materials (SSDM 2021), Sept. 2021.
• Shigeru Kimura, Akihiro Shiraishi, Xinyi He, Takayoshi Katase, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Electronic structures and electronic properties of 2-dimensional layered semiconductors, AETMN2 (AE = Sr, Ba; TM = Ti, Zr, Hf), The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Takayoshi Katase, Xinyi He, Terumasa Tadano, Keisuke Ide, Hideto Yoshida, Shiro Kawachi, Junichi Yamaura, Masato Sasase, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. 3D-2D structural phase transition and giant electronic conductivity modulation in non-equilibrium hetero-structural alloy, (Pb1-xSnx)Se, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Keisuke Ide, Yukari Kasai, Akihiro Kato, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Effect of hydrogen doping on transport property of ultrawide bandgap amorphous oxide semiconductor, amorphous Ga-O, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Kaiwen Li, Kota Hanzawa, Keisuke Ide, Kosuke Matsuzaki, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Qun Zhang, Toshio Kamiya. Fabrication of Zn3N2 electric double layer transistor by ionic liquid gating, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Keisuke Ide, Yukari Kasai, Akihiro Kato, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Effect of hydrogen doping on transport property of ultrawide bandgap amorphous oxide semiconductor, amorphous Ga-O, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Xinyi He, Tatsuya Cho, Takayoshi Katase, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Electronic structures and electro-optical properties of layered oxychalcogenide semiconductor, AE2CuInO3Ch (AE: Alkaline earth, Ch: Chalcogen), The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Masatoshi Kimura, Yuhi Higuchi, Xinyi He, Takayoshi Katase, Terumasa Tadano, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Strain-induced large power-factor enhancement by breaking thermoelectric trade-off relation in lanthanum nickel oxide, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Takumi Nose, Xinyi He, Haoyun Zhang, Takayoshi Katase, Terumasa Tadano, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Degenerate hole conduction and ultra-low lattice thermal conductivity of SnSe by nonequilibrium isovalent Te substitution, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Keiji Tsubaki, Tenki Ishida, Yasuo Takahashi, Takayoshi Katase, Toshio Kamiya, Atsushi Tsurumaki-Fukuchi, Masashi Arita. Current-driven metal-insulator transition observed in epitaxial thin films of the Mott Semiconductor Ca2RuO4, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Mari Hiramatsu, Xinyi He, Takayoshi Katase, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. High electron conductivity and extremely low thermal conductivity of layered SnS semiconductor by geometrical Pb doping, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Masatoshi Kimura, Xinyi He, Takayoshi Katase, Terumasa Tadano, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Phonon-drag driven giant anisotropic thermopower in epitaxially strained LaNiO3 (110) ultra-thin films, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Ryusei Higuchi, Takayoshi Katase, Kota Hanzawa, Shintaro Yasui, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Thermoelectric properties of non-equilibrium SnSe thin films stabilized by epitaxial strain, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Xinyi He, Haoyun Zhang, Takumi Nose, Takayoshi Katase, Keisuke Ide, Hidenori Hiramatsu, Hideo Hosono, Toshio Kamiya. Origin of high-density hole doping by isovalent Te substitution in SnSe, The Twelfth International Conference on the Science and Technology for Advanced Ceramics (STAC12), July 2021.
• Keiji Tsubaki, Tenki Ishida, Yasuo Takahashi, Takayoshi Katase, Toshio Kamiya, Atsushi Tsurumaki-Fukuchi, Masashi Arita. Solid-phase epitaxial growth of Ca2RuO4 thin films with current-induced metal-insulator transition, The 8th Asian Conference on Crystal Growth and Crystal Technology (CGCT-8), Mar. 2021.

Domestic Conference (Reviewed)

• Xinyi He, チェン ジンシュアイ, Takayoshi Katase, Keisuke Ide, hidenori hiramatsu, HIDEO HOSONO, TOSHIO KAMIYA. 300cm2/Vs以上の粒内正孔移動度を示す非平衡岩塩型(Sn,Ca)Seエピタキシャル薄膜, 薄膜材料デバイス研究会 第18回研究集会, Nov. 2021.
• S. Kimura, Xinyi He, Takayoshi Katase, Keisuke Ide, hidenori hiramatsu, HIDEO HOSONO, TOSHIO KAMIYA. 逆ペロブスカイト型酸化物Ba3(Si,Ge)Oの高純度バルク合成と電気特性評価, 薄膜材料デバイス研究会 第18回研究集会, Nov. 2021.
• 椿 啓司, 福地 厚, 高橋 庸夫, Takayoshi Katase, TOSHIO KAMIYA, 有田 正志. Ca2RuO4エピタキシャル薄膜における電流誘起非線形伝導現象の高速化, 第82回応用物理学会秋季学術講演会, Sept. 2021.
• 福地厚, 椿啓司, 高橋庸夫, Takayoshi Katase, TOSHIO KAMIYA, 有田正志. Ca2RuO4薄膜における非線形伝導現象の高速化と不連続転移の観測, 日本物理学会2021年秋季大会, Sept. 2021.
• 福地 厚, 椿 啓司, 石田 典輝, 片瀬 貴義, 神谷 利夫, 有田 正志, 高橋 庸夫. Ca2RuO4薄膜における電流誘起抵抗転移のRu欠損量依存性, 2021年第68回応用物理学会春季学術講演会, Mar. 2021.
• 高橋 雄大, 片瀬 貴義, ホ シンイ, 只野 央将, 井手 啓介, 吉田 秀人, 河智 史朗, 山浦 淳一, 笹瀬 雅人, 平松 秀典, 細野 秀雄, 神谷 利夫. 準安定(Pb1-xSnx)Se薄膜の2次元-3次元構造転移と巨大電子物性変調, 2021年第68回応用物理学会春季学術講演会, Mar. 2021.
• 井手啓介, 笠井悠莉華, 片瀬貴義, 平松秀典, 細野秀雄, 神谷利夫. 超ワイドギャップアモルファス酸化物半導体を用いたショットキーバリアダイオードの逆バイアス特性, 2021年第68回応用物理学会春季学術講演会, Mar. 2021.

International Conference (Not reviewed / Unknown)

• Kaiwen Li, Kota Hanzawa, Keisuke Ide, Kosuke Matsuzaki, Takayoshi Katase, Hidenori Hiramatsu, Hideo Hosono, Zhang Qun, Toshio Kamiya. Room-temperature fabrication of ionic liquid gated Zn3N2 electric double layer transistors with non-degenerate channel electron density, 2021 International Conference on Solid State Devices and Materials (SSDM 2021), Sept. 2021.

Patent

• Takayoshi Katase, TOSHIO KAMIYA, HIDEO HOSONO. カルコゲナイド薄膜、及び熱電変換素子. Patent. Published. 国立大学法人東京工業大学. 2021/08/31. 特願2021-141736. 2023/03/13. 特開2023-035115. 2023.
• Takayoshi Katase, Takafumi Yamamoto, TOSHIO KAMIYA, HIDEO HOSONO. 水素置換酸化物バルク焼結体の製造方法、水素置換酸化物バルク焼結体、及び熱電変換素子. Patent. Published. 国立大学法人東京工業大学. 2021/01/26. 特願2021-010569. 2022/08/05. 特開2022-114315. 2022.

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